Use standard library, not pytz

Author: samirelanduk

nextflow/io.py

@@ -1,6 +1,6 @@
 import os
-import pytz
 import glob
+from zoneinfo import ZoneInfo
 from datetime import datetime
 
 def get_file_text(path, io=None):
@@ -31,7 +31,7 @@ def get_file_creation_time(path, timezone=None, io=None):
         else:
             dt = datetime.fromtimestamp(os.path.getctime(path))
         if timezone:
-            tz = pytz.timezone(timezone)
+            tz = ZoneInfo(timezone)
             dt = dt.astimezone(tz)
             dt = dt.replace(tzinfo=None)
         return dt

setup.py

@@ -28,6 +28,6 @@
     ],
     keywords="nextflow bioinformatics pipeline",
     packages=["nextflow"],
-    python_requires="!=2.*, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*",
+    python_requires="!=2.*, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*, !=3.6.*, !=3.7.*, !=3.8.*",
     install_requires=[]
 )